- Partnership for Access to Higher Mathematics (PATH Mathematics)
- Pathways to Character
- Pause, Prompt, & Praise ©
- Peabody Language Development Kits
- Peace Education
- Peer-Assisted Learning Strategies
- Performance Learning Systems
- Personalized System of Instruction (PSI)
- Phono-Graphix
- Phonological Awareness Training
- Phonological Awareness Training plus Letter Knowledge Training
- Piacceleration Instruction
- Pivotal Response Training
- PLATO
- Play-Based Interventions
- Positive Action
- Pre-K Mathematics
- Prentice Hall Literature© (1989-2005)
- Prentice Hall/Pearson Literature© (2007-15)
- Programmed Tutorial Reading
- Progress in Mathematics © 2006
- Project 2000
- Project CHILD
- Project CRISS®
- Project FAST
- Project LISTEN's Reading Tutor
- Project LISTEN's Writing Tutor
- Project MAS
- Project PLUS (Partnership Linking University School Personnel)
- Project Read® Phonology
- Project SEED
- Project Teach and Reach
- Project Wisdom
- Psychology
- QuickReads
- Rainbow Reading Program
- Rational Number Project
- READ 180®
- Read Naturally®
- Read Well®
- Read, Write & Type!
- Reading Apprenticeship®
- Reading Edge
- Reading Intervention for Early Success
- Reading Mastery
- Reading Plus®
- Reading Recovery®
- Reading Rods
- Reading RULES! Kindergarten
- Reading Speed Drills
